It had earlier been reported that the governing body might be wavering due to some teams weakening their opposition to the technology, and engine manufacturers revealing they are worried the ban will affect reliability.

But FIA technical delegate Charlie Whiting has written to the teams in Montreal confirming that there will be limits on the innovations applying from next month's British Grand Prix, and a total ban in 2012.

Whiting will discuss his plans with the teams at the technical working group meeting next week.

"Unless the teams can show a definite major problem with the approach that means it's not feasible, it will go ahead," Mercedes team boss Ross Brawn told the BBC.